Chinchillon and Rodent

Chinchillon noun - Gregarious burrowing rodent larger than the chinchillas.

Rodent and chinchillon are semantically related. In some cases you can use "Rodent" instead a noun "Chinchillon".

Rodent noun - Relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing.

Chinchillon and rodent are semantically related. Sometimes you can replace term "Chinchillon" with "Rodent", this nouns are similar.